Basing (pinout)
Bottom view — the socket as you see it from the wiring side. Hover, tap, or focus a pin to name it. Read from the datasheet basing diagram (how to read these →).
Hover, tap, or focus a pin to name it.
- High voltage (B+)
- Heater / filament
- No connection
- Internal connection
Viewed from below (socket / wiring side) · octal · basing 5DA
⚡ Oxblood pins sit at B+ — hundreds of volts in service, lethal, and still charged after power-off.
Datasheets
Primary manufacturer data, via public tube-data archives. The model below is fitted to the tabulated "average characteristics" in these sheets; the datasheet files themselves are linked, never rehosted.
| Publisher | Type | Source |
|---|---|---|
| Mullard | GZ34 | frank.pocnet.net ↗ |
| Philips | GZ34 | frank.pocnet.net ↗ |
Circuit Codex model
A CC0 ngspice model in the Koren form, fitted here to the published anchor — no parameters copied from other model collections. Methodology →
- Anchor
- tube voltage drop ~17 V at Ia=250 mA per plate (Mullard average)
- Source
- RCA Receiving Tube Manual RC-19, 1959, average characteristics
- Note
- Child's-law diode (I = PERV·V^1.5); one plate unit, instantiate twice.
- File
- models/gz34.inc ↗